—— 请按键盘 空白键 开始游戏 ——

The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.
数学的研究就像空气或重力——它无处不在,即使你看不到它。
Un libro es una ventana a otras vidas y otros mundos.
行动表达优先级。
One must be a god to be able to tell successes from failures without making a mistake.
觉醒的人唯一的责任,是找到自我,成为自我,自己摸索前行的路。
When the last tree is cut, the last dollar will lose its meaning.